Driving mechanism for cars



(No Model.) I

. fi'imaueaguy W 2 Sheets-Sheet 1.

G. E. HEALY. DRIVING MECHANISM FOR CARS.

Patented July 1, 1890.

(No Model.)

2 Sheets-Sheet 2. O. E. HEALY DRIVING MECHANISM FOR (JARS.

Patented July 1, 1890.

rg-i an? TESS- UNITED STATES PATENT OFFICE.

CALEB E. HEALY, OF NEWV LONDON, OHIO.

DRIVING MECHANISM FOR CARS.

SPECIFICATION forming part of Letters Patent No. 431,115, dated July 1,1890.

Application filed May 2, 1890. Serial No. 350,399. (No model.)

To all whom it may concern.-

Be itknown that I, CALEB E. HEALY, a citizen of the United States, and aresident of New London, county of Huron, State of Ohio, have inventedcertain new and useful Improvements in Driving Mechanism for Cars, ofwhich I hereby declare the following to be a full, clear, and exactdescription, such as will enable others skilled in the art to which itappertains to make and use the same.

My invention relates to improvements in driving mechanism for cars; andits objects are to produce a simple, positive, and efficient device bymeans of which the car may be started under a full load, maintained at auniform high speed for travel, or assisted in climbing steep gradients,or conveying heavy loads without detaching the motor from thedriving-shaft or main shaft or altering the speed of the driving-shaft.

Myinvention consists in the application of auxiliary gearing and shaft,with the accompanyin g sleeves, clutches, details of construction, andcombination of parts, as are hereinafter described, shown in thedrawings, and more particularly pointed out in the claims.

In the accompanying drawings, Figure 1 shows a plan View of anengine-platform andmy improved device attached. Fig. 2 is a sideelevation, in longitudinal section, of the same. Fig. 3 is an enlargedplan view of the portions embodying my invention. Fig. 4 is a verticallongitudinal section through line A A, Fig. 3; and Fig. 5 is amodification in detail.

A in the drawings represents the engineshaft.

Bis a main shaft gearing directly to the engine-shaft.

O and C, Fig. a, are loose sleeves upon either end of the shaft B,inside of its bearings, to which are keyed the pinion D, (and to theouter sleeve O,) the gear-wheel I, and sprocket-wheel J. Gear F. andpinion II, respectively, connect this pinion D and gear I with the shaftF, which lies in parallel bearings to the shaft Clutches, as K, keyed tothe shaft B, connect the loose sleeves O and and O with the shaft. Theseclutches are operated at K centrally on the shaft, and release onesleeve while securing the other.

The operation of the mechanism and its effects on the speed of the carwill be seen to be as follows: The engine-shaft A and main shaft B beingin motion, supposing the clutches K to be centrally placed, it will beseen that both sleeves with superimposed gearing will remain stationaryupon the shaft and will not revolve until one of the clutches K operatesto secure the corresponding sleeve to the shaft. If the sleeve 0' issecured, the sprocket-wheel J comes into play and drives the car-axle,as shown in Figs. 1 and 2.. The sprocket-wheelJ travels at the samespeed as the shaft B. If, however, the sleeve 0 is secured to the shaftB, the pinion D, meshing with the wheel E, then drives the shaft F andpinion II, which in turn communicates with the wheel I andsprocket-wheel J, both rigid on the sleeve 0. By the means lastdescribed any desired speed can be given the sprocketwheel J, since anyproportion of pinions D and II to spur-wheels E and I may be employed.As shown, the pinions are so reduced as to lessen the speed of the wheelJ to about one-third of the speed of the shaft B. It will readily beseen that the gearing on either end of the shaft B may be engaged ordropped at pleasure quite regardless of. the movements of the engine orthe shaft 13.

In Fig. 5 a method is shown for detaching the gearing on the auxiliaryshaft F when it is not in use, as in a stretch of level country wherefull speed can be maintained, the advantage being that the gears willnot revolve and become worn when disengaged, and the consequent noisewill be prevented. The device, it will be seen, consists of theeccentric sleeve-bearing E and lever e. Other devices, however, maybeused for this purpose equally well.

The advantages of the device shown are obvious from its simplicity andperfection of movement. It will be seen that it can not only be utilizedin overcoming the inertia of the car in starting and put it in motionwithout strain upon the engine, but by including the train of gear atany time the power may be increased as needed for extra loads, steepinclines, &c.

I do not confine myself entirely to either the form of clutches ordetaching device shown, nor to the specific forms of any of the parts ordetails of construct-ion as shown;

but

ICO

What I claim as new, and desire to secure by Letters Patent, is

1. In car-driving mechanism, a main shaft, as B, provided with clutches,as K K, sleeves, as G and C, loose upon the shaft, the sleeve 0 providedwith the pinion D and sleeve C provided with the spur-Wheel I andsprocket J, in combination With the auxiliary shaft F, and gear andpinion E and H, substantially as described.

2. In car-driving mechanism, means for changing the speed, consisting ofan auxiliary shaft to the main shaft, gears upon the auxiliary shaftcommunicating with gears upon loose sleeves upon the main shaft, adriving- 15 the auxiliary shaft from the corresponding 20 gear on themain shaft when the reduction in speed is not required, substantially asand in the manner described.

CALEB E. HEALY.

Witnesses: WM. M. MONROE, JOHN T. LISTER.

